Hi Folks.
First of all, I'm really sorry not to have come back before on this. We've been redecorating - boring how real life can get in the way of more important things.
I've read through - though not with a calculator in hand - your comments, and I most certainly have NO intention of giving up on the cure - I've not started with it, that's all, and I'm not going to start until I've got the whole process really clear in my mind.
Captain wassname... you said in your first post
so 1295 gms of cure contains 295 gms of cure.
1 gm of cure contains 0.2277 gms cure
Now this is just the sort of use of language I find confusing. Surely it's 1 gm of
solution that contains .2277 gms cure.
You know, I think the light is beginning to dawn.... Oddley uses the word "cure" for both the powder and the dissolved solution interchangeably, and without differentiating. No doubt it's so obvious to anyone that's made it, that no one else notices this ambiguity.
Anyway, be that as it may, Let's see if I can follow the next bit.
So 1000
gms of solution will contain (1000/1295)*294 = 227 gms of cure. However, I will have made more than this EVEN if my leg had weighed 10kg. I suppose that the solution will keep for the next leg!
Now wheels says
inject an amount equivalent to 10% of the weight of the meat "amount?" I'm sorry but amount is ambiguous. I guess that in view of everyone else's remarks, that means weight. So you weigh out whatever you need (245 gms in Wheel's example or 1000 gms in mine) of the brine. As I said, I thought most syringes were calibrated, so wouldn't it really be much easier to say "use 200 mls" - or whatever the volume of 245 gms turns out to be, or in making the recipe general, instead of saying inject at 10% he could either say "inject at 10%w/w of solution" (which is completely unambiguous) or else "inject at 8% (or whatever the figure works out at ) v/w of solution". Or is it that because in general digital scales are more accurate than syringes?
Anyway, to come to the next bit. You talk in terms of 50:50. Unless I've completely misunderstood, pumping at 10% would (in the hypothetical case of a 10kg leg whose weight is chosen purely for mathematical simplicity) need 1000 gms of either cure or solution, it's not clear which from Oddley's original recipe. I'm guessing that it's solution. That will give, as I said above, 227g of cure.
Aha.... and then he says
"rub at the rate of 23g/kg"
, which in my hypothetical 10kg leg is 230 gms or pretty well exactly the same, so THAT'S where the 50:50 comes from. All the rest is easy. Rub as usual and give it 14 days in a bag in the fridge.
Clive.. thanks very much for the offer, but I THINK that at last I've understood it. I think, however, that I might have a bash at rewriting this recipe in a way that I find unambiguous and clearer and bounce THAT off you. If you agree that I've got it right, then I'll go for it when I get back from the UK in early January.